[Tim slides one of the flares out of the casing - it comes with two red, and two blue.]

Like a regular gun. Only there's one clip, and you shoot it at the sky if you're in trouble. Red is to tell everyone to keep away, and blue is to say that you need help.

[He glances down at the flares, considering, then shrugs.]

Though I guess you could use them like a regular gun if you're in a tight spot.